In win32::GUI, which is lacking some of the features I need, switching between menus required “hide”ing one menu and “show”ing another. Since all of the menus are basically active at one time, only the active menu would respond to its subs, so the system worked well.

I have examples of how to change to a message box which disables the calling menu. How do you switch from one menu to another and then allow the second menu to return to the first? As I said, “show” and “hide” are not part fo the Tk schema.